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nikdorinn [45]
2 years ago
10

HELP HELP HELP HELP PLEASE

Mathematics
2 answers:
wolverine [178]2 years ago
5 0

Answer:

2

Step-by-step explanation:

6^2  - 36 ÷ 3^2 x 4 -18

Using BODMAS -Brackets, Of, Division/Multiplication, Addition/Subtraction.

=36 -(36 ÷ 9) x 4 -18

=36 - 4 x 4 -18

=36 -16-18

=2

Lelechka [254]2 years ago
3 0

Answer:

2

Step-by-step explanation:

Following the order of operations as set out in PEMDAS

6² - 36 ÷ 3² × 4 - 18 ( no parenthesis so evaluate exponents )

= 36 - 36 ÷ 9 × 4 - 18 ( multiplication/ division, evaluate from left to right )

= 36 - 4 × 4 - 18

= 36 - 16 - 18

= 20 - 18

= 2

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David found and factored out the GCF of the polynomial 80b4 – 32b2c3 + 48b4c. His work is below. GFC of 80, 32, and 48: 16 GCF o
BlackZzzverrR [31]

Answer: The correct statements are

The GCF of the coefficients is correct.

The variable c is not common to all terms, so a power of c should not have been factored out.

David applied the distributive property.

Step-by-step explanation:

GCF = Greatest common factor

1) GCF of coefficients : (80,32,48)

80 = 2 × 2 × 2 × 2 × 5

32 = 2 × 2 × 2 × 2 × 2

48 = 2 × 2 × 2 × 2 × 3

GCF of coefficients : (80,32,48) is 16.

2) GCF of variables :(b^4,b^2,b^4)

b^4= b × b × b × b

b^2 = b × b

b^4 =b × b × b × b

GCF of variables :(b^4,b^2,b^4) is b^2

3) GCF of c^3 and c: c is not the GCF of the polynomial. The variable c is not common to all terms, so a power of c should not have been factored out.

4) 80b^4-32b^2c^3+48b^4c

=16b^2(5b^2-2c^3+3b^2c)

David applied the distributive property.

7 0
3 years ago
Read 3 more answers
Awnser this for brainliest
bogdanovich [222]

Answer:

Missing number is 1

Step-by-step explanation:

3(2x+1)

Using distributive property,

=>3(2x)+2(1)

=>6x+2

3 0
3 years ago
1. Kelly has a rock garden with a length of 6 feet. She constructs a scale model of the rock garden using the scale 1 inch:2 fee
alexandr1967 [171]

Answer:

<em>(a) 3 inches </em>

<em>(b) Her scale model drawing WILL fit on the piece of paper 8.5 by 7 inches</em>

Step-by-step explanation:

<u>Scaling </u>

We use scales to represent realities in reduced spaces. In the case of lengths or surfaces, the scale allows us to draw the shapes in normal sheets of paper.  

(a)

Kelly's rock garden has a length of 6 feet. She uses a 1 inch:2 feet scale. this means that the model length is

6 feet*1 inch/2 feet = 3 inches

(b)

The width of the model is 5 inches, keeping the same scale it means the real length is

5 inches * 2 feet / 1 inch = 10 feet

The model will have 3 inches by 5 inches, it perfectly fits on any regular piece of paper

6 0
3 years ago
a quart of paint covers 80 square feet. how many quarts should you buy to paint the ramp with two coats(Assume you will not pain
Evgesh-ka [11]
The answer would be 160 because 80+80=160
5 0
3 years ago
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Find the slope of the line in simplest form.
N76 [4]

Answer:

-\frac{3}{2}

Step-by-step explanation:

To find the slope of the given line, slope is the rise divided by the run of a line.

  Slope  = \frac{y_{2} - y_{1}  }{x_{2} - x_{1}  }

  Picking points (4, 18)  and (8, 12)

 Now;

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  x₂ = 8

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  Slope  = \frac{12 - 18}{8-4}   = -\frac{6}{4}   = -\frac{3}{2}

7 0
3 years ago
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